Home About Browse Search
Svenska


High Arctic ecosystem states: Conceptual models of vegetation change to guide long-term monitoring and research

Ravolainen, Virve and Soininen, Eeva M. and Jonsdottir, Ingibjoerg Svala and Eischeid, Isabell and Forchhammer, Mads and van der Wal, René and Pedersen, Ashild O. (2020). High Arctic ecosystem states: Conceptual models of vegetation change to guide long-term monitoring and research. AMBIO: A Journal of the Human Environment. 49 , 666-677
[Journal article]

[img] PDF - Published Version
Available under License Creative Commons Attribution.

734kB

Abstract

Vegetation change has consequences for terrestrial ecosystem structure and functioning and may involve climate feedbacks. Hence, when monitoring ecosystem states and changes thereof, the vegetation is often a primary monitoring target. Here, we summarize current understanding of vegetation change in the High Arctic-the World's most rapidly warming region-in the context of ecosystem monitoring. To foster development of deployable monitoring strategies, we categorize different kinds of drivers (disturbances or stresses) of vegetation change either as pulse (i.e. drivers that occur as sudden and short events, though their effects may be long lasting) or press (i.e. drivers where change in conditions remains in place for a prolonged period, or slowly increases in pressure). To account for the great heterogeneity in vegetation responses to climate change and other drivers, we stress the need for increased use of ecosystem-specific conceptual models to guide monitoring and ecological studies in the Arctic. We discuss a conceptual model with three hypothesized alternative vegetation states characterized by mosses, herbaceous plants, and bare ground patches, respectively. We use moss-graminoid tundra of Svalbard as a case study to discuss the documented and potential impacts of different drivers on the possible transitions between those states. Our current understanding points to likely additive effects of herbivores and a warming climate, driving this ecosystem from a moss-dominated state with cool soils, shallow active layer and slow nutrient cycling to an ecosystem with warmer soil, deeper permafrost thaw, and faster nutrient cycling. Herbaceous-dominated vegetation and (patchy) bare ground would present two states in response to those drivers. Conceptual models are an operational tool to focus monitoring efforts towards management needs and identify the most pressing scientific questions. We promote greater use of conceptual models in conjunction with a state-and-transition framework in monitoring to ensure fit for purpose approaches. Defined expectations of the focal systems' responses to different drivers also facilitate linking local and regional monitoring efforts to international initiatives, such as the Circumpolar Biodiversity Monitoring Program.

Authors/Creators:Ravolainen, Virve and Soininen, Eeva M. and Jonsdottir, Ingibjoerg Svala and Eischeid, Isabell and Forchhammer, Mads and van der Wal, René and Pedersen, Ashild O.
Title:High Arctic ecosystem states: Conceptual models of vegetation change to guide long-term monitoring and research
Year of publishing :2020
Volume:49
Page range:666-677
Number of Pages:12
Publisher:Springer
ISSN:0044-7447
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
Keywords:Arctic tundra, Climate change, Ecological monitoring, Ecosystem state, Press driver, Pulse driver
URN:NBN:urn:nbn:se:slu:epsilon-p-103694
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-103694
Additional ID:
Type of IDID
DOI10.1007/s13280-019-01310-x
Web of Science (WoS)000512109100002
ID Code:16761
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Ecology
(S) > Dept. of Ecology
Deposited By: SLUpub Connector
Deposited On:14 Apr 2020 12:13
Metadata Last Modified:14 Apr 2020 12:13

Repository Staff Only: item control page

Downloads

Downloads per year (since September 2012)

View more statistics

Downloads
Hits